REPLACEMENT OF OLD FAULTY UNDERGROUND POWER SUPPLY CABLES OF FACULTY BLOCK A, B, C AND LIBRARY BUILDING

Amount

Supply of 3 1/2 core armoured PVC/XLPE insulated, PVC sheathed aluminium conductor cable of 1.1 KV grade with ISI mark conforming to IS:1554(Part I) ,IS:7098(Part I) with latest amendments of following size.

31/2 Core 185 sq.mm

3 1/2 Core 240 sq.mm

Supplying and making cable end terminations with brass compression gland and copper lugs for folowing sizes of 3 1/2 Core PVC insulated PVC sheathed/XLPE aluminium conductor cable of 1.1 KV grade, complete as required.

(8) 3 1/2 x 185 Sq. mm.

(10) 3 1/2 x 240 Sq. mm.

Laying of one number PVC insulated and PVC sheathed/XLPE power cable of 1.1 KV grade of size exceeding 120 sq.mm but not exceeding 400 sq.mm direct in ground including excavation in the form of a trench as per Cable Trench Drawing provided by the Engineer-Incharge,sand cushioning with screened sand bed of 20mm thick , protective covering with bricks placed breadth-wise on top of cable all over the run( the brick protection shall cover the cable and project atleast 5 cms over the sides of the cable)and backfilling the excavated earth without stones or hard material and making the surface proper with 15 cm crown on the top complete as required.

(b) In rocky strata

Laying of one number additional PVC insulated and PVC sheathed/XLPE power cable of 1.1 KV grade of size exceeding 120 sq.mm but not exceeding 400 sq.mm direct in ground in the same trench in one tier horizontal formaion including excavation in the form of a trench as per Cable Trench Drawing provided by the Engineer-Incharge,sand cushioning with screened sand bed of 20mm thick , protective covering with bricks placed breadth-wise on top of cable all over the run( the brick protection shall cover the cable and project atleast 5 cms over the sides of the cable) and backfilling the excavated earth without stones or hard material and making the surface proper with 15 cm crown on the top complete as required.

(b) In rocky strata

Laying of one number PVC insulated and PVC sheathed/XLPE power cable of 1.1 KV grade of size exceeding 25 sq.mm but not exceeding 400 sq.mm in the existing RCC/HUME/STONEWARE Metal pipe, etc. complete as required

Laying of one number PVC insulated and PVC sheathed/XLPE power cable of 1.1 KV grade of size exceeding 120 sq.mm but not exceeding 400 sq.mm on surface, etc. complete as required

Supply and fixing of cable route marker 15 cms diameter of GI plate 6mm thick with inscription theron bolted or welded to 25mm x 25mmx 5mm angle iron 60 cms long and fixing the same in ground with PCC etc complete as required.

Earthing with copper earth plate 600 mm x 600 mm x 3 mm thick including accessories and providing masonry enclosure with CI/RCC cover having locking/lifting arrangement and watering pipe etc. (but without charcoal or coke and salt) as required as per the Earthing Drawing provided by the Engineer-Incharge.The scope of work includes the following: a) Excavation of pit of size 1.0x1.0x 3.0 mtrs(min) and disposal of excavated soil. c)Watering GI pipe, 20 mm Class B, with funnel as per specs. d) Charcoal/salt as per specs ( paid seperately). e) Refilling the pit of size 1.0x1.0x 3.0 mtrs(min) with soft black agriculture soil of minimum resistivity i/c transportation. e)Masonary chamber with proper foundation, cover plate and locking arrangement. f) Testing of earth value with earth megger and certifications of its value. g)watering arrangement (plumbing will be paid seperately).

(b) In rocky strata

Extra for using salt and charcoal for GI or copper plate earth electrode as required( 96 Kgs of Charcoal and 5 Kgs of Salt)

Supplying and laying 25 mm x 5 mm copper strip in 40 mm dia GI pipe from earth electrode as required

Clearing jungle including up rooting of rank vegetation grass bush wood trees and sapling of girth upto 30 cm. measured at a height of 1 m above ground level & removal of rubbish upto a distance of 50 mt. outside the periphery of the area cleared. (if however, only grass is met with the area will be measured and paid for under item 4001).

Supplying & laying (including excavation) reinforced cement concrete pipe of NP-2 class of 250 mm diameter in proper line, level and slope including providing and fixing collars in cement mortar 1:2 and curing etc. complete.

Dismantling the existing cables of all types & size above 50 sq mm.

Supplying and Installing following size perforated type 16 SWG, M.S.cable tray of GI pregalvanised/hot dip galvanised/ powder coated finish, in convenient sections, joined with connectors, suspended from the ceiling with suitable MS suspenders including bolts and nuts, painting suspenders etc, complete as required.

150mm width x 50mm depth

Aargee Engineers & Co. (BID ID -49008)